20184580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2677}}^1$

素因数の和:2728

約数の個数: 48

約数和(自身を含む): 47239920

約数和(自身を除く): 27055340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 2677, 3770, 5354, 7540, 10708, 13385, 26770, 34801, 53540, 69602, 77633, 139204, 155266, 174005, 310532, 348010, 388165, 696020, 776330, 1009229, 1552660, 2018458, 4036916, 5046145, 10092290, 20184580]

約数ペア:

[(1, 20184580), (2, 10092290), (4, 5046145), (5, 4036916), (10, 2018458), (13, 1552660), (20, 1009229), (26, 776330), (29, 696020), (52, 388165), (58, 348010), (65, 310532), (116, 174005), (130, 155266), (145, 139204), (260, 77633), (290, 69602), (377, 53540), (580, 34801), (754, 26770), (1508, 13385), (1885, 10708), (2677, 7540), (3770, 5354)]